Bead-sewing machine



Se t. 22, 1925.

Y J.. A. GROEBLI BEAD SEWING'MACHINE Filed Jfily l6. s Sheets-Sheet 1- Qwuemtoz, I a d 4. $4M; @331 1nd abtomug Spt. 22, 1925.

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v UNITED STATES PATENT O F F1;cE-.-

JOS PH-A. GRoEBL on NEW YORK, N; Y.

READ-SEWING MAcHiNn. i

To whom it may concern:

Be it known that I, Josnrrr beadseparator and while they arejtraveling;

down to the fabric, and to supporting the beadthread against distortion during the I formation-of the stitch; and my improvements aredirected particularly to the employment of, positively actingv mechanical means which will follow thebead down and, if it lags, push it down to or closeto the fabric, and will, also, act as a guide or sup port to the bead thread and to the stitching thread in the process 0f:forining the stitch,

so that the bead will be positively brought 'to the proper position, and the threads will assume their correct relations for holding it in place with precision and accuracy,

An embodiment of my invention, in means suitable forcarryingitinto operation, is shown in the accompanying drawings, in which Fig." 1 is aside elevation, withjsome parts'insection, of the head of a, sewing machine with my improved mechanism mounted thereupon; Fig.2 is a similar view taken as looking to the left onFig. 1; Fig. 3 is a cross sectional view taken as looking down on line 3'3 of Fig. 1; Figs.

' 1,- 6, 8, 10, 12, and 1 1 area series of views illustrating in elevation the'successive positions of the mechanisms during a stitch cycle; and Figs. 5, 7, 9, 11, 13 and 15 illustrate-in plan the same successive positions of the mechanism, exclusive of the head I separator; Figs. 16, 17 and 18 are details.

Similar reference numerals designate the same parts in all the figures. ,JMy improvements are applicable to ma Letters Patent Number 1315,76 1 of February 20th, 1923 and the method of their embodiment in such machines may be readily understood by, refer-ring to my aforesaid patent for an. illustration of the requisite A. GnoEBLI, a citizen of the United-States, and a resi Application filedJ'uly V16 1923. Serial No. 651,768.

' operative parts of the mechanism which are not shown in the drawlngs forming part h 'e fi A bead separator 1, the novelfeatures o'f which are the subject of aseparate application Serial No. l,769,-filed July 16, 1923, and, for that reason,are not herein described in fuller detail, is carried by, a tube 53,

whichcorresponds to the tubei53 of my aforesaid patent, and the tubes 38 and 95 correspond to thetubes similarly numbered in the same patent. V o On the driving shaft cam 2, which travels against the upper end.

of a bar 4, slidably mounted in thehead 5 V of the machine-and pressed against the cam. i

33, is, mounted a by a spring 6- interposed betweenitand the head, the upper end of the bar being pro-.

vided with a suitable track 7 forthecam to rotate against. Q V I To the lower end of the bar 4 is attached an arnrS having a ring end 9 surrounding the lower portion of the machine'head, so, as to leave an openspace between itand the ring9.

. The collar 10, which isjattached to the end of the tube 95, and carries the presser foot 11, is provided with a pin 12,;the-ends. of which pass through socketsin flanges 13,

1 1 on a bar 15, so that the bar may slide up and down on the pin.

The upper end ofthe barf15 its-provided I with a slot which adapts it'to straddle the ring 9, but loosely enough to permitiit to be turned to and fro through the slot An arm 19 is journalled on the pin 12, and

is fitted with a rabbet 20 in which the bar 15: slides so that if the arm19 is swung to and fro it will rock the bar 15 around the pin 12.

A spring21, stretched between the collar 10 and the bar 15, keeps the end of the arm 19 pressed against the face of a cam 23 which is carried by the tube 38, Consequently-when, I the tube revolves, the arm 19, willbe swung to andfro by the cam 23'. The bar 15 carries. an arrn25, terminating in an inwardly turned forked end 26 dis-v posed below the beadseparaton'; which is illustrated as being of the gripping type,

wherein a pivoted jaw 27 is opened; and

closed through an arm28,beingrockedby a no r loo

' cam collar 29. carried by the tube 38, an arm 3O reciprocating below the jaw, to hold up the heads when the jaw is open and to drop one head when the jaw is closed; this dropping of the bead taking place once for each revolution of the tube 38. This bead separating mechanism is the subject of a separate application.

The tube 38 also carries with it the thread guide 31, which supplies the stitching thread 32 to the needle 34, in the well known man ner, casting the thread around both the needle 34 and the bead thread 35, in the process of forming the stitch.

' The operation of the machine is as fol" lows v Assuming that the parts are 1n aposition where a bead 40 has been released by'the arm and has started to slide down the thread 35, and the forked end 26 of the arm 25 has been swung around so as to straddle the thread 35, the adjustment of the mechanism is such that the rotation ofthe cam 2, will'depress the bar 4 and its arm 8 and the ring 9, sliding the bar 15 down on the pin 12 so that the forked end 26 of the arm 25, will follow the'bead down along thethread, as

illustrated in Figs.'4 to 13 inclusive, and will push the bead before it if the bead shows anyt'endency to hang on the thread or not to drop promptly down to the fabric, 1n which casethere wouldbe danger of the stitchlng 1 thread being fouled by passing around the bead thread below the head a second time.

'During this movement of the bead follower arm 25, the needle 34, which was partially raised, has been elevated to its highest I point and then lowered until, when the guide 31 is on the side of the needle opposite to its barb, the barb of the needle will catch the thread and draw it through the loop previously formed around the needles shank; the 'movement' of the thread guide being timed to swing its thread over-the end 26 of the arm 25, and above it and the head 40, thereby preventing the stitching'thread from passing under the bead a second time and being fouled, and to continue around the thread '35, which will be laterally supported, against the lateral drag of the stitching thread, by the fork of the end 26 until the turn around it has been partially completed. During the latter part of this movement the bead separator jaw has opened and allowed another bead 41 to drop down on the arm 30, by which it is released, as shown in Figs. 12 and 13, and allowed to start down the threaded 35. r

The shoulder of the cam 23, however, rocks out the arm 19, swinging the bar 15 and its arm 25 around so as to draw the forked end of 26 out of the path of the bead 41, while at the same'time the bar 15 and its arm 25 areraised by the sliding upward of lateral 6, as the short axis of the cam 2 is brought over the bar 4.

The continued travel of the cam allows the arm 19 to rock back, so that the forked end of arm 26 is swung forward to again straddle the thread 35, as in Figs. 4 and 5.

The cycle of movements is then repeated for the next stitch.

In this way each bead, after having been released by the separator or dropper, is followed down by the follower until it reaches its proper position for attachment to the fabric;,the bead thread is supported'against displacement; and the stitching thread is prevented from fouling under the head; so that a high degree of accuracy is assured in the operation ofthe machine, anddefective work, because of delayed movement of the beads or defective cooperation of the threads, is very effectually guarded against.

It will be understood that the mechanism shown is used as an illustrative typeof a suitable embodiment of my invention, and not as an exclusive form thereof. For details of construction might be modified, as by the use of mechanical equivalents or the like, without departing from the scope of my invention as claimed. I

Having thus described my invention, what I claim and desire to secure by Letters- Patent of the United States, is

1. In a bead sewing machine embodying means for supplying a thread carrying loosely strung beads, bead separating means, and means for winding a stitching thread around the bead thread between every two stitches, the combination of movable, mechanical means engaging with the beads and propelling them forward beyond their point of final separation. I a

2. In abead sewing machine embodying means for supplying a thread carrying loosely strung beads, bead separating means, and

thread around the bead thread between every two stitches, the combination of movable, mechanical means engaging with the beads and propelling them forward beyond their point of final separation the range of movementof said mechanical means permitting it to follow the beads to their selected positions on the fabric.

4. In a bead sewing machine embodying means for supplying a thread" carrying 4 loosely strung beads,-bead separating means,

andmeansfor winding a stitching thread around the bead thread between every two stitches, the combination of vertically movable mechanical means adapted to propel the beads forward beyond'their point of final separation.

5. In a bead sewing machine embodying means for supplying a thread carrying loosely strung beads, bead separating means, and means for winding a stitching thread around the bead thread between every two stitches, the combination of means, radially movable relative to the bead thread, adapted to propel the beads forward beyond their 7 beyond their point of final separation.

7. In a bead sewing machine embodying means for supplying a thread carrying loosely strung beads, bead separating means," and means for wlnding a stltching thread around the bead thread between every two stitches, the combination of projectable and retractable means adapted to propel the beads forward beyond their point of final fabric.

separation.

8,. In a bead sewing machine embodying means for supplying a thread carrying loosely strung beads, bead separating means, and means for winding a stitching thread around the bead thread between every two stitches, the combination of movable means, moving between the bead separator and the fabric, intermittently engaging with the bead thread and forming a lateral support for it against a lateral drag of the stitching thread.

9. In a bead sewing machine embodying means for supplying a thread carrying loosely strung beads, bead separating means, and means for winding a stitching thread around the bead thread between every two stitches, the combination of movable means, moving between the bead separator and the intermittently slidably engaging with the bead thread and forming a lateral support for it against a lateral drag of the stitching thread. 10. In a bead sewing machine embodying means for supplying a thread carrying loosely strung beads, bead separating means,

and means for winding a stitching thread I around the bead thread between every two stitches, the combination of movable means, moving between the bead separator and the fabric, intermittently engaging with the bead' thread between the'bead and the'stitch ing'thr eadand fori'ning a lateral support for thebeadthread against a lateral drag of' the stitohi-ngthread. j

1 -11. In a bead -s"e"win machine embodying means for 'sup-plyinga thread carrying loosely strung beads-, 'be'a'd separating means, and means for winding a .stitching'thread around the bead thread between every. two stitches, the combination of projectable and retractable means, for supporting the bead thread laterally against the drag of the stitching thread, cooperating with the beadv thread between the bead separator and the fabric.

12. In a beadsewing machine embodying means, for supplying a thread carrying loosely strung beads, bead separating means, and means for'winding a stitching thread around the bead thread between every two stitches, the combination of vertically and laterally movable means, for supporting the thread laterally against the drag of the stitching thread, thread between the bead separator and the fabric. Y

cooperating with the I .18. In abead sewing machine embodying means for supplying a thread carrying loosely strung beads, bead separating means,

and means for winding a stitching thread around the bead thread betweenevery two stitches, the ,combination of movable mechanical means adapted to propel the beads forward beyond the separator and also to support a bead thread laterally againstgthe drag of a stitching thread and to interp'ose between the stitching thread and a bead and prevent the fouling of the stitching thread by its passing. under a bead a'second time.

14'. In a bead sewing machine embodying means for supplying athread carrying I loosely strung beads, bead separating means, and means for winding a stitching thread around the bead thread between every two stitches, the. combination of unitary movable mechanical means adapted to propel the beads forward beyond the separator and also to support a bead thread laterally against the drag of the stitching thread and to interpose between the stitching thread and a bead and prevent fouling of the stitching, thread by its passing under a bead a second time.

.15. In a bead sewing machine embodying means for supplying a thread carrying loosely strung beads, bead separating means, and means for winding a stitching thread around thebead thread between every two stitches, the combination of movable 'fmee chanical means adapted to propel the beads forward beyond the separator and also to intermittently support a bead thread lateral ly against the drag of the stitching thread and to-prevent fouling of a stitching thread by its passingunder a bead a second time.

16.111 a bead sewing machine embodying ed to propel the beads forward beyond the means for supplying a thread carrying separator and also to support a bead thread loosely strung beads, bead separating means, laterally against the drag of the stitching 10 and means for Winding a stitching thread thread and to prevent the fouling of a 5 around the bead thread between every tWostitching thread by its passing under a bead stitches, the combination of vertically and a-second time. p 7 V laterally movable mechanical means adapt- JOSEPH A. GROEBLI. 

